Waste collector for a card

Abstract

An apparatus for removing waste from a card has a circulating perforated component supported spaced from the licker-in in the lower zone thereof; a vacuum generator connected with the inside of the perforated component for drawing air through the perforated component; and a connecting chamber extending from an opening in the lower zone of the licker-in to the perforated component for providing a passage of air and waste drawn by the vacuum.

What is claimed is: 
     
       1. In an apparatus for removing waste from a card having a feed table on which fiber material is advanced, a licker-in receiving fiber material from the feed table and a carding cylinder receiving fiber material from the licker-in; said apparatus including means defining an opening in a lower zone of said licker-in; vacuum means for drawing away waste from said card; the improvement comprising (a) a rotary perforated component supported spaced from said licker-in in the lower zone thereof;   (b) means forming part of said vacuum means and situated within said perforated component for drawing air through said perforated component; and   (c) means defining a connecting chamber extending from said opening to said perforated component for providing a passage of air and waste drawn by said vacuum means.   
     
     
       2. An apparatus as defined in claim 1, wherein said opening is situated downstream of said feed table as viewed in a direction of material feed on said feed table. 
     
     
       3. An apparatus as defined in claim 1, wherein said connecting chamber comprises a conduit. 
     
     
       4. An apparatus as defined in claim 1, wherein said perforated component comprises a screen drum. 
     
     
       5. An apparatus as defined in claim 1, wherein said perforated component has a first perforated zone oriented towards said connecting chamber and a second perforated zone oriented away from said connecting chamber; further comprising an air shield supported inside said perforated component, said air shield obturating said second perforated zone. 
     
     
       6. An apparatus as defined in claim 5, further comprising a waste removing device communicating with said second perforated zone. 
     
     
       7. An apparatus as defined in claim 1, further comprising means for regulating the flow of air in said connecting chamber. 
     
     
       8. An apparatus as defined in claim 1, wherein said licker-in is a first licker-in; further comprising a second licker-in situated downstream of said first licker-in and cooperating with said carding cylinder; said perforated component being connected by said connecting chamber with said second licker-in. 
     
     
       9. An apparatus as defined in claim 8, wherein said opening, said connecting chamber and said rotary perforated component are each two in number; each said licker-in being associated with a separate opening, a separate connecting chamber and a separate perforated component. 
     
     
       10. An apparatus as defined in claim 8, further comprising a fiber material guide component in a space defined between said first and second licker-ins; said guide component being situated above said perforated component. 
     
     
       11. An apparatus as defined in claim 1, wherein said connecting chamber comprises deflecting plates directing flow from said licker-in to said perforated component.